WordPress database error

Hello,

I’m getting this persistent error since 4-5 months now and I’ve already posted a support ticket either at wp.org or at FB page but cannot find it anymore:

[Aug 04, 14:01:39] WordPress database error Commands out of sync; you can't run this command now for query SELECT autoload FROM ajlzt_options WHERE option_name = 'rank_math_notifications' made by shutdown_action_hook, do_action('shutdown'), WP_Hook->do_action, WP_Hook->apply_filters, MyThemeShop\Notification_Center->update_storage, delete_option

At that time your reply was to Remove Rank Math Transients + Flush SEO Analysis Data. I’ve done this several times but there is no change and I still get the same error regularly.

I found another ticket with same here:
https://wordpress.org/support/topic/error-commands-out-of-sync-you-cant-run-this-command-now-2/
and you seem to suggest that there might be a file missing, but I’ve done 4-5 updates since this issue appeared for the first time and there is no change.

Do you have any other idea?
Is this an issue to be taken seriously or can be ignored?

Thanks!